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Official data from INPI

CATALISADOR,PROCESSO DE FABRICO DE LIGA FINAMENTE DIVIDIDA DE METAL NOBRE E,VANADIO E ELETRODO CATODICO DE CELULA ELETROQUIMICA

ConcedidaInvention Patent

Application data

Number

PI7904197

Type

Invention Patent

Filing

07/03/1978

Publication

-

Progress at the INPI

  1. Filing07/03/78
  2. Publication
  3. Examination03/23/82
  4. Allowance05/12/87
  5. Grant12/29/87
  6. Terminated01/28/92

The patent was granted on 12/29/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNITED TECHNOLOGIES CORP

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Inventors

J. V. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Notificação para pagamento de retribuição

#13.1

09/22/1987

RPI 883

Republicação - classificação IPC

#15.11

05/19/1987

RPI 865

Deferimento

#9.1

05/12/1987

RPI 864

Exigência - art. 36 da LPI

#6.1

07/15/1986

RPI 821

Solicitação de exame técnico

#4.1

03/23/1982

RPI 596

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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